Audio analysis and processing system
An audio analysis and processing system with a processor configured with an audio array input thread connected to a plurality of audio input channels each corresponding to an audio input sensor. An audio input sensor may be positionally related to a position of other audio input sensors and a source input thread may be configured to be connected to a microphone audio input channel. An audio output thread may be configured to be connected to a speaker output channel and a beamformer thread may be responsive to the audio array input thread. A beam analysis and selection thread may be connected to an output of the beamformer thread and a mixer thread may have a first input connected to an output of the source input thread and a second input connected to an output of the beam analysis and selection thread and may have an output connected to the audio output thread. The audio input channel may be connected to the personal communication device. The microphone audio input channel may be connected to the personal communication device. The processor may include a line output thread configured to connect to an audio output channel. An audio information interface may be provided to connect signals representing audio to the processor.
1. An audio analysis and processing system comprising a processor configured with:
a. an audio array input thread configured to be connected to one or more of audio input channels each corresponding to an audio input sensor;
b. an audio input sensor positionally related to a position of other audio input sensors;
c. a source audio input thread configured to be connected to a source audio input channel;
d. an audio output thread configured to be connected to a speaker output channel;
e. a beam former, direction of arrival, and orientation thread responsive to said audio array input thread;
f. an audio analysis and beam selection thread connected to an output of a user microphone thread and an output of said beam former, direction of arrival, and orientation thread and connected to a dwell time counter, and wherein said audio analysis thread includes one or more of speaker recognition, voice activity detection and noise reduction algorithms activated to select a beam upon detection of a beam selection criteria detected by said audio analysis and beam selection thread and active for a period concluding upon expiration of a dwell time counter and wherein said dwell time counter is initiated upon detection of said beam selection criteria; and
g. a mixer thread having a first input connected to an output of said source audio input thread and a second input connected to an output of said audio analysis and beam selection thread and having an output connected to said audio output thread and wherein said mixer thread processes audio in accordance with an output of said audio analysis and beam selection thread and is responsive to a dwell time counter.
2. The audio analysis and processing system according to claim 1 further comprising a communications interface connected to said processor.
3. The audio analysis and processing system according to claim 2 wherein said communications interface further comprises a low-power wireless personal area network interface.
4. The audio analysis and processing system according to claim 3 wherein said low power wireless personal area network is a Bluetooth Low Energy (BLE) interface.
5. The audio analysis and processing system according to claim 4 wherein said BLE interface further comprises a BLE daemon responsive to a user interface thread of said processor and an HCI driver responsive to said BLE daemon.
6. The audio analysis and processing system according to claim 2 further comprising a user control interface linked to said processor.
7. The audio analysis and processing system according to claim 6 wherein said user control interface further comprises an application program operating on a personal communication device.
8. The audio analysis and processing system according to claim 7 wherein said audio input channel is connected to said personal communication device.
9. The audio analysis and processing system according to claim 8 wherein said microphone audio input channel is connected to said personal communication device.
10. The audio analysis and processing system according to claim 2 further comprising an audio information interface connecting signals representing audio to said processor.
11. The audio analysis and processing system according to claim 1 wherein said processor further comprises a line output thread configured to connect to an audio output channel.